Display options
Cite
Park KS, Chan CK, Lee DH, et al. Midterm Results of Conversion from Failed Bipolar Hemiarthroplasty to Total Hip Arthroplasty. Indian J Orthop. 2018;52(4):369-373doi: 10.4103/ortho.IJOrtho_494_16.
Park, K. S., Chan, C. K., Lee, D. H., & Yoon, T. R. (2018). Midterm Results of Conversion from Failed Bipolar Hemiarthroplasty to Total Hip Arthroplasty. Indian journal of orthopaedics, 52(4), 369-373. https://doi.org/10.4103/ortho.IJOrtho_494_16
Park, Kyung-Soon, et al. "Midterm Results of Conversion from Failed Bipolar Hemiarthroplasty to Total Hip Arthroplasty." Indian journal of orthopaedics vol. 52,4 (2018): 369-373. doi: https://doi.org/10.4103/ortho.IJOrtho_494_16
Park KS, Chan CK, Lee DH, Yoon TR. Midterm Results of Conversion from Failed Bipolar Hemiarthroplasty to Total Hip Arthroplasty. Indian J Orthop. 2018 Jul-Aug;52(4):369-373. doi: 10.4103/ortho.IJOrtho_494_16. PMID: 30078894; PMCID: PMC6055454.
Copy Download .nbib Format: NLM
Share it on

Indian J Orthop. 2018 Jul-Aug;52(4):369-373. doi: 10.4103/ortho.IJOrtho_494_16.

Midterm Results of Conversion from Failed Bipolar Hemiarthroplasty to Total Hip Arthroplasty.

Indian journal of orthopaedics

Kyung-Soon Park, Chee-Ken Chan, Dong-Hyun Lee, Taek-Rim Yoon

Affiliations

  1. Center for Joint Disease, Chonnam National University Hwasun Hospital, 160 Ilsim-Ri, Hwasun-Eup, Hwasun-Gun, Jeonnam 58128, Korea.
  2. Department of Orthopaedic Surgery, Faculty of Medicine, NOCERAL, University of Malaya, Kuala Lumpur, Malaysia.

PMID: 30078894 PMCID: PMC6055454 DOI: 10.4103/ortho.IJOrtho_494_16

Abstract

BACKGROUND: Conversion from failed bipolar hemiarthroplasty (HA) to total hip arthroplasty (THA) presents a great challenge to orthopedic surgeons for bipolar head removal and cup placement with or without change of femoral stem. Conversion THA after failed bipolar arthroplasty is known to offer both symptomatic and functional improvement. This study evaluates the midterm functional outcome and complications, especially dislocation associated with femoral head diameter, after conversion THA.

MATERIALS AND METHODS: Forty eight hips with the conversion of bipolar HA to THA were followed up for an average 6.2 years (range 2.0-11.5 years). Twenty one hips had conversion surgery to THA using metal-on-metal articulation (28 or 32 mm head). Nine hips used ceramic-on-ceramic (28-40 mm) and eighteen hips used large head metal-on-metal bearing (>40 mm). Outcome was evaluated using Harris Hip Score (HHS) and Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) score. The radiographs were analyzed for evidence of osteolysis and/or loosening. The complications were evaluated, especially dislocation with different femoral head diameter.

RESULTS: Average HHS significantly improved from 42 preoperatively to 86 postoperatively and the average WOMAC score also significantly improved from 47 to 22 postoperatively. Radiological evaluation showed all the femoral components were stable. There was one acetabular component loosening, which required revision 9 years after conversion to THA. One dislocation and one recurrent dislocation were recorded in isolated acetabular revision hip; whereas one dislocation, one recurrent dislocation, and one trochanteric nonunion occurred in the hips with revision of both components. All dislocations occurred in hips with a femoral head size of 28 mm (

CONCLUSIONS: Conversion THA after failed bipolar HA offers a reliable pain relief and functional improvement. To prevent dislocation, it is highly recommended to use a larger diameter femoral head, especially where the cup size is big.

Keywords: Arthroplasty; Bipolar hemiarthroplasty; acetabulum; arthritis; complication; conversion total hip arthroplasty; hip; replacement

Conflict of interest statement

There are no conflicts of interest.

References

  1. J Bone Joint Surg Am. 1978 Mar;60(2):217-20 - PubMed
  2. Clin Orthop Relat Res. 1979 Jun;(141):17-27 - PubMed
  3. J Bone Joint Surg Am. 2006 Dec;88(12):2583-9 - PubMed
  4. J Arthroplasty. 1998 Sep;13(6):627-30 - PubMed
  5. J Bone Joint Surg Am. 1973 Dec;55(8):1629-32 - PubMed
  6. J Bone Joint Surg Br. 1997 Mar;79(2):258-64 - PubMed
  7. Am J Orthop (Belle Mead NJ). 2001 Apr;30(4):313-9 - PubMed
  8. J Bone Joint Surg Br. 2007 Feb;89(2):160-5 - PubMed
  9. Clin Orthop Relat Res. 2009 Feb;467(2):473-7 - PubMed
  10. J Arthroplasty. 1987;2(4):327-41 - PubMed
  11. J Arthroplasty. 2008 Oct;23(7):1009-15 - PubMed
  12. J Bone Joint Surg Am. 1969 Jun;51(4):737-55 - PubMed
  13. J Bone Joint Surg Br. 1991 Nov;73(6):902-7 - PubMed
  14. J Bone Joint Surg Br. 2012 Aug;94(8):1113-9 - PubMed
  15. J Arthroplasty. 2004 Apr;19(3):387-90 - PubMed
  16. Int Orthop. 2012 Jan;36(1):1-8 - PubMed
  17. Clin Orthop Relat Res. 2002 Jun;(399):129-39 - PubMed
  18. J Arthroplasty. 2000 Feb;15(2):200-4 - PubMed
  19. Clin Orthop Relat Res. 1978 Nov-Dec;(137):112-7 - PubMed
  20. Clin Orthop Relat Res. 1976 Nov-Dec;(121):20-32 - PubMed

Publication Types